Interface Details

Power and Connectors

The baseboard uses 12V DC input. PWRKEY is the power key and RESET is the reset key. Core-board VSYS input range is 3.1V to 5.25V.

Debug UART

UART0 is CPU UART0 output and the default debug UART. The Android manual notes 921600 as the SecureCRT debug UART baud rate.

HDMI

The board provides a standard HDMI connector for external display. For HDMI issues, check cable, monitor, resolution, display configuration, and power.

Camera

The board provides MIPI CSI1 and MIPI CSI2 Camera connectors. Core-board pin definitions include RDN/RDP, RCP/RCN, and related differential pins for MIPI Camera input.

Ethernet

Ethernet is implemented through a USB-to-100M Ethernet interface. For Ethernet issues, check USB-to-Ethernet enumeration, driver, power, and cable connection.

Headphone, Speaker, and Recording

The board includes headphone jack, SPK speaker output, and MIC input. Core-board pins include ACCDET, AU_HPR, AU_HPL, SPK+, SPK-, AU_MICBIAS, and other audio pins.

TF Card

The TF card provides external storage. Core-board pins MSDC1_CLK/CMD/DAT0~DAT3 and SD_CARD_DET_N are SD-card related.

Independent Keys

The board provides KEY1~KEY4 and additional PWR, RST, and MODE keys.

OTG and USB HOST

The DIP switch selects OTG download mode or USB HOST mode. Micro USB is the OTG download port, and USB HOST provides three HOST ports.